For existing installations, you can download specific security rollups and updates directly from the Microsoft Update Catalog .
You can still find the Windows Embedded Standard 7 SP1 Evaluation Edition on the Microsoft Download Center. This version typically provides a 180-day trial period. microsoft windows embedded standard 7 iso download
Windows Embedded Standard 7 (WES7) is a componentized version of the Windows 7 operating system, designed specifically for original equipment manufacturers (OEMs) to build specialized devices like kiosks, digital signage, and industrial controllers. For existing installations